Grain boundary segregation and environmental degradation of a ferritic stainless steel

Conference · Mon Aug 01 04:00:00 EDT 1983

OSTI ID:5752457

Jones, R H; Thomas, M T

Grain boundary segregation analysis, hydrogen embrittlement and stress corrosion tests were conducted on a 13 mm thick plate of the Fusion AOD heat (No. 9607) of HT-9. Grain boundary chemical analysis was performed using PHI model 595 and 545 Auger Electron Spectrometers (AES). The Model 595 spectrometer has a spatial resolution of less than 0.1 ..mu..m which allows segregation to measured on very small segments of grain boundary or other microstructural features. Analysis was performed on material given the following heat treatments: 1) 1040/sup 0/C for 30 min, air-cooled + 760/sup 0/C for 2-1/2 hr, air-cooled; 2) same as 1 + 240 hr at 500/sup 0/C.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5752457
• Report Number(s): PNL-SA-11138; CONF-830845-3; ON: DE83016927
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOY-HT-9
ALLOYS
AUGER ELECTRON SPECTROSCOPY
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELECTRON SPECTROSCOPY
ELEMENTS
EMBRITTLEMENT
FERRITIC STEELS
GRAIN BOUNDARIES
HEAT TREATMENTS
HYDROGEN EMBRITTLEMENT
IRON ALLOYS
IRON BASE ALLOYS
MICROSTRUCTURE
NONMETALS
PHOSPHORUS
SPECTROSCOPY
STAINLESS STEELS
STEELS
STRESS CORROSION
SULFUR
VERY HIGH TEMPERATURE